NTP debugging/config aws context

gistfile1.txt

# recommended ntp pool (/etc/ntp.conf)
server 0.amazon.pool.ntp.org iburst
server 1.amazon.pool.ntp.org iburst
server 2.amazon.pool.ntp.org iburst
server 3.amazon.pool.ntp.org iburst

ntpq
> peers
check for connection prefixed with *
> as
check for "sys_peer"
> rv (assid)

# healthy output
"""
ntpq
ntpq> peers
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+chris.magnet.ie 193.120.10.3     2 u   31   64  377    2.363  -12.187  10.625
+gatekeeper.dhco .PPS.            1 u   21   64  377    7.462  -29.616  11.063
*tshirt.heanet.i .PPS.            1 u   25   64  377    4.589  -28.576  11.670
x149.157.192.5   128.243.81.127   2 u   12   64  377    2.650   -2.221   8.775


ntpq> as

ind assid status  conf reach auth condition  last_event cnt
===========================================================
  1 19717  9424   yes   yes  none candidate   reachable  2
  2 19718  943a   yes   yes  none candidate    sys_peer  3
  3 19719  963a   yes   yes  none  sys.peer    sys_peer  3
  4 19720  9124   yes   yes  none falsetick   reachable  2


ntpq> rv 19719
associd=19719 status=963a conf, reach, sel_sys.peer, 3 events, sys_peer,
srcadr=tshirt.heanet.ie, srcport=123, dstadr=10.0.2.172, dstport=123,
leap=00, stratum=1, precision=-19, rootdelay=0.000, rootdisp=0.259,
refid=PPS, reftime=d9dc8fcc.d5134ef4  Thu, Oct 29 2015 12:30:04.832,
rec=d9dc8fcd.b3390230  Thu, Oct 29 2015 12:30:05.700, reach=377,
unreach=0, hmode=3, pmode=4, hpoll=6, ppoll=6, headway=23, flash=00 ok,
keyid=0, offset=-28.576, delay=4.589, dispersion=5.097, jitter=11.670,
xleave=0.047,
filtdelay=     5.59    4.82    4.82    4.79    4.64    4.68    4.59    4.71,
filtoffset=  -13.10  -13.41  -14.47  -16.19  -19.03  -22.96  -28.58  -31.53,
filtdisp=      0.00    1.01    1.98    2.96    3.93    4.91    5.90    6.86
"""
note high offset as system is re-adjusting the clock